How to Add Page Numbers to PDF Online
- Upload Your PDF: Click "Select PDF File" or drag and drop your document into the box. The tool renders your pages locally with an instant interactive preview.
- Configure Layout and Position: Choose vertical position (header or footer) and horizontal alignment (left, center, right, or alternating outer margin for booklets).
- Customize Number Style & Fonts: Select your preferred format (e.g. 1, - 1 -, Page 1, or 1 / 12), choose from standard typographic fonts (Helvetica, Times, Courier), font size, and color.
- Apply & Download: Click "Number & Download PDF" to instantly stamp numbers across all pages and save your publication-ready document.
Customizable Numbering Positions, Fonts, and Layouts
Whether formatting a master's thesis, legal deposition, financial prospectus, or printed user manual,
HelpPDFs provides professional typographic controls directly in your web browser:
- Headers & Footers: Position numbers along the top or bottom margin with micro-precision in typographic points.
- Outer Margin for Double-Sided Printing: Automatically alternates margins — odd numbers on the right, even numbers on the left — ensuring numbers never get lost in bound spines.
- Classic Typography: Embed numbers using standard PostScript fonts including Helvetica, Times Roman, and Courier.
Flexible Numbering Formats & Cover Page Skipping
Formal documents almost never number the cover page. With HelpPDFs, simply check "Do not number the first page (cover)"
and numbering will automatically commence on the second sheet. You can also specify any custom starting number (e.g. starting at page 5 for an appendix).
100% Client-Side Privacy & Performance
Unlike traditional online PDF converters that transfer confidential documents across external web servers,
HelpPDFs executes all rendering, canvas calculations, and PDF stamping locally in your browser using WebAssembly and JavaScript.
Your confidential reports, contracts, and private files never leave your device.
Frequently Asked Questions (FAQ)
Can I choose where page numbers appear on the page?
Yes. You can position page numbers in either the header (top) or footer (bottom), aligned left, center, right, or outer (alternating margins for double-sided booklet printing). You can also adjust vertical and horizontal margins in typographic points.
Can I skip the cover page or start numbering at page 2?
Yes. Check "Do not number the first page (cover)" and the first page will be left completely blank. You can also define the first number to display if your document is part of a multi-part series.
Does adding page numbers recompress or degrade document quality?
No. Numbers are drawn as native vector elements directly into the document content streams. Original scanned images, vector graphics, and text layers remain identical to the source.
Are my confidential PDF documents uploaded to your servers?
No. All processing is 100% client-side. The file stays in your browser memory and is never uploaded or saved to remote cloud servers.
What numbering formats and fonts are available?
You can choose plain numbers (1), dashes (- 1 -), "Page 1", "1 / 12" (page of total), or custom text prefixes and suffixes. Available fonts include Helvetica, Helvetica Bold, Times Roman, and Courier.